1. Let F be the field with 2 elements. The number of (ordered) bases of F" over F is (а) п (b) п? (c) (2" – 1)(2" – 2) ..· (2" – 2"-1). (d) 2" (e) There are infinitely many

Q: Let F be a field and let f(x) = a,x" + a„-p"-1 + · .. Prove that x - 1 is a factor of f(x) if and…

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Q: What is the field extension of Z[i]? Z[x]? explain reasoning

A: Field extension of Z[i] is  Q[i]  Since, the smallest field that contains Z is Q and Z[i]={a+bi | a,…

Q: Let F be a finite field with q elements and -1 -1] A 1 0 E € GL₂(F). Find N(A).

A: Definition: The nullspace of the matrix A, denoted N(A), is the set of all n-dimensional column…

Q: 3) Show that (a + bi)º = (a – bi). Hint: for any x, y in a field containing Fp, (x+y)º = xº + yP.…

A: As per our guidelines, we are supposed to answer only one question if there are multiple questions…

Q: 2. Find all of the prime quadratic polynomials in F4[x], where F4 {0,1, a, b} be the field of four…

A: Given: F4={0,1,a,b}

Q: Read through the following theorem and proof and answer the questions on it that follow. Be sure to…

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Q: 1. Based on the axioms of a vector space V over a field F prove the following: (a) If x, y z ¤ V and…

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Q: Let F = {0, 1} be the field with two elements, and let · denote the standard dot product in F100,…

A: Given: F=0,1 is a field with two elements. "·" denotes the standard dot product in F100.…

Q: Let F be a field and let f(x) = a,r" + an-x"-1 + . .. + ao E F[x]. Prove that x - 1 is a factor of…

A: As per the question we are given a nth order general polynomial f(x) over the field F[x] And we have…

Q: 14. Prove that F Z[]/(1+ 2i) is a field. How many elements are in F? What is the characteristic of…

A: Z[I]\(1+2i) and the number of elements

Q: .55. (+) Let F be a field consisting of exactly three elements 0, 1, x. Prove that +x= 1 and that x…

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Q: Let 2={1,2,3,4,5,6}. Construct the minimal field containing 1. 8={{1,2}, {3,4}}

A: This is a problem of measure theory.

Q: (7) Let F be a field. Prove that (−1) · x = -X.

A: Let F be a field. We have to prove that (-1)·x=-x.

Q: 15. If S1 and S2 are two semialgebras of subsets of 2, show that the class S1S2 := {A1A2 : A1 € S1,…

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Q: 30. Let B; be o-fields of subsets of 2 for i = 1, 2. Show that the o-field B1V B2 defined to be the…

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Q: (6) Let F be a field and x € F. Prove that -(-x) = = X.

A: Solution: Given that

Q: 4. Is M₂ (R) a field? Justify.

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Q: 1. Prove the following property in an order field F. If r + y 0, then r 0 and y= 0.

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Q: eed the ans

A: Given, Β is a σ-field of subfield of Ω and suppose Q : Ω↦0, 1 is a set function satisfying(a) Q is…

Q: 4. The field of quotients of (Z2, +2)-2) is (a) Q2 (b) Z2 (c) Z4 (d) Zg

A: Field of quotient

Q: 9. Use the field norm to show: a) 1+/2 is a unit in Z [/2] b) -1+v-3 is a unit in Z [1+-3 ]

A: Use the field norm to show thata1+2 is a unit in 2.b-1+-32 is a unit in -1+-32.

Q: 3. Suppose F is a splitting field of æ" – 1 over Z3. (a) Find |F| if n = 3. (b) Find |F| ifn = 13.…

A: Given polynomial is  Let p(x)=x^n - 1

Q: What is the order of the splitting field of x³ + x² + 1 = (x² + x + 1) ⋅ (x³ + x + 1) over Z₂?

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Q: 2 Let F be and B= any field O 0 1 0 0 1 Q O 0 0 al 92 аз : an-1 an 01 Find the minimal polyromial of…

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Q: .3. Let K be an extension of a field F. Let

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Q: 3. Let F be a field and let a(x), b(x), c(x), d(x), and e(x) be polynomials in F[x] with a(x) ‡ 0F.…

A: To show that e(x) divides a(x)d(x), we need to prove that there exists a polynomial q(x) such that…

Q: Assume F1, F2, · · ·, Is U₁ Fi a field? i=1 2 Fn ... is an infinite sequence of fields with F₁ C F₂2…

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Q: 5/ Let n E Z* be square free, that is, not divisible by the square of any prime integer. Let Z\/-n]=…

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Q: (c) Show that V3 e Q[ V6]

A: We have to proceed using contradiction method.